Alert archive / South Carolina / Flash Flood Watches in 2020
Flash Flood Watch 5, NWS Wilmington, NC
NWS Wilmington, NC issued this flash flood watch at Aug 2, 2020, 3:10 AM EDT for 6 counties in North Carolina; 8 counties in South Carolina. It took effect at Aug 3, 2020, 8:00 AM EDT. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Aug 2, 2020, 3:10 AM EDT (07:10 UTC)
- In effect from
- Aug 3, 2020, 8:00 AM EDT
- Expired
- Aug 4, 2020, 2:46 AM EDT
- In force
- 19 hr
- Issued by
- NWS Wilmington, NC
- Flood severity
- None
Counties Bladen County, NC, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Robeson County, NC, Darlington County, SC, Dillon County, SC, Florence County, SC, Georgetown County, SC, Horry County, SC, Marion County, SC, Marlboro County, SC, Williamsburg County, SC
The radar
The Wilmington radar (KLTX), 59 km from the middle of the area, began a volume at 07:12 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Newport, NC (KMHX), launched 00:00Z, 7.2 hours before the alert went out and 208 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1690 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 871 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Wilmington, NC wrote its last area forecast discussion before this flash flood watch went out at Aug 2, 1:42 AM EDT, 1 hour 28 minutes earlier.
Area forecast discussion, Aug 2, 1:42 AM EDT, 1 hour 28 minutes before
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</html>Hazardous weather outlook, Aug 2, 2:06 AM EDT, 1 hour 4 minutes before
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</html>The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 2:05 AM EDT | Coastal Flood Advisory | ILM | New Hanover | 21 hr |
| Aug 2, 5:12 AM EDT | Storm Surge Watch | ILM | Brunswick, New Hanover, Pender | 48 hr |
| Aug 2, 5:12 AM EDT | Tropical Storm Watch | ILM | Bladen, Brunswick, Columbus, New Hanover, Pender, Robeson | 6 hr |
| Aug 2, 11:13 AM EDT | Tropical Storm Warning | ILM | Bladen, Brunswick, Columbus, New Hanover, Pender, Robeson | 42 hr |
| Aug 2, 5:06 PM EDT | Hurricane Watch | ILM | Brunswick, New Hanover, Pender | 12 hr |
| Aug 2, 5:10 PM EDT | Storm Surge Warning | ILM | Brunswick | 36 hr |
Nearby
Flash Flood Watches in South Carolina, 2020Flash Flood Watches in North Carolina, 2020Every flash flood watch in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.